Ink jet recording with equal amounts of mono- and mixed color droplets

Abstract

An ink-jet recording process is provided which comprises applying inks to a recording medium having at least an ink-transporting layer and an ink-retaining layer, from the ink-transporting layer side of said recording medium, and thereby forming with a plurality of ink dots a unicolored area observable from the ink-retaining layer side, the dots being formed respectively by application of at least two ink droplets in superposition. A mixed color dot is similarly formed, wherein the amount of ink forming the unicolor dot and the mixed color dot is about the same to provide similar image density, resolution and uniformity.

I claim: 
     
       1. A process for recording an image comprising the step of: applying a unicolor dot and a mixed color dot to a recording medium, the recording medium having at least an ink-transporting layer and an ink-retaining layer,   said applying step including forming each of the unicolor dot and the mixed color dot with an amount of ink comprising approximately equal numbers of a plurality of ink droplets in superposition, said ink droplets having a diameter of 40 μm or less, and providing the ink droplets to said ink-retaining layer through said ink-transporting layer, wherein the respective amounts of ink reaching said ink-retaining layer and forming the unicolor dot and the mixed color dot approximate each other, and   said applying step further including forming both of said dots in a density of 300×300 dots per inch or more.   
     
     
       2. The process of claim 1, wherein said inks are selected from the group consisting of cyan, magenta, yellow or black inks. 
     
     
       3. The process of claim 1, wherein said unicolor dot is formed with a plurality of ink droplets of the same color. 
     
     
       4. The process of claim 1, wherein said unicolor dot is formed with a colored ink droplet and a colorless ink droplet. 
     
     
       5. The process of claim 1, wherein said recording medium comprises said ink-transporting layer and said ink-retaining layer which are laminated on a light-transmissive substrate. 
     
     
       6. The process of claim 1, wherein both of said dots are in a density of 400×400 dots per inch or more. 
     
     
       7. A process for ink-jet recording a colored image comprising the step of: applying a unicolor dot and a mixed color dot to a recording medium, the recording medium having at least an ink-transporting layer and an ink-retaining layer,   said applying step including forming each of the unicolor dot and the mixed color dot with an amount of ink comprising approximately equal numbers of a plurality of ink droplets in superposition, said ink droplets having a diameter of 40 μm or less, and providing the ink droplets to said ink-retaining layer through said ink-transporting layer, wherein the respective amounts of ink reaching said ink-retaining layer and forming the unicolor dot and the mixed color dot approximate each other, and   said applying step further including forming both of said dots in a density of 300×300 dots per inch or more.   
     
     
       8. The process of claim 7, wherein the inks are selected from the group consisting of cyan, magenta, yellow or black inks. 
     
     
       9. The process of claim 7, wherein said unicolor dot is formed with a plurality of ink droplets of the same color. 
     
     
       10. The process of claim 7, wherein said unicolor dot is formed with a colored ink droplet and a colorless ink droplet. 
     
     
       11. The process of claim 7, wherein said recording medium comprises said ink-transporting layer and said ink-retaining layer which are laminated on a light-transmissive substrate. 
     
     
       12. The process of claim 7, wherein both of said dots are in a density of 400×400 dots per inch or more.